Title :
Investigation of a W band novel folded-waveguide TWT
Author :
Jun He ; Yanyu Wei ; Yubin Gong ; Wenxiang Wang
Author_Institution :
Vacuum Electron. Nat. Lab., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
As one of all-metal SWSs, folded-waveguide structure has been widely studied for high-power millimeter-wave TWT. However, the former investigations reveal that its low interaction impedance limits the gain obtained by the tube. Therefore, we propose a novel structure to enhance the beam-wave interaction and raise the gain of the tube. In this paper, a W-band two-section traveling-wave tube (TWT) model with double-groove loaded FWSWS is constructed and the nonlinear large-signal performance of such a TWT is investigated by a 3-D particle-in-cell (PIC) code MAGIC3D.
Keywords :
millimetre wave tubes; slow wave structures; 3D particle-in-cell code MAGIC3D; all-metal SWS; beam-wave interaction; folded-waveguide structure; folded-waveguide travelling wave tubes; high-power millimeter-wave TWT;
Conference_Titel :
Vacuum Electron Sources Conference and Nanocarbon (IVESC), 2010 8th International
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-6645-0
DOI :
10.1109/IVESC.2010.5644387
